Only suitable for thin barred cages
The bars of my canaries’ cage are quite thick (not as thick as some parrot cages) and these clips don’t fit in them. Only suitable for thin bars.
So I can’t attach them to cage, can still use them to hold a single miller spray, but they aren’t that grippy so nothing heavier and since they’re not fixed to bars it’s just like using a clothes peg - moves about.
I Wish Zooplus sold the traditional strong metal ones.